jonas-fischer.com

.com crawl

First seen 2026-04-13 · Last seen 2026-05-06 · ok HTTP/1.1 200 881 ms crawled 2026-05-06

DE · 144.76.198.40 · AS24940 Hetzner Online GmbH

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: jonas fischer - portfolio
Language: en

Open Graph

url: http://jonas-fischer.com/
title: jonas fischer - portfolio
site name: jonas fischer - portfolio

Technology

Server: nginx

Third-party hosts loaded (1)

d1vq4hxutb7n2b.cloudfront.net×4

Registration

Registrar

CPS-Datensysteme GmbH

Created

2008-02-27

Expires

2027-02-27 282 days left

Updated

2026-02-12

Name servers

ns1.endil.net
ns2.endil.net

DNS records live

NS

ns1.cysys.de
ns2.cysys.de

MX

10 mail.briefhansa.de

Email authentication strong

SPF: v=spf1 ip4:95.216.201.219/32 ip4:95.216.201.210/32 ip4:46.38.236.163/32 a mx -all
strict (-all)
DMARC: v=DMARC1; p=reject; adkim=s; aspf=s;
policy: reject (enforced)
DKIM: no key found at common selectors

Certificate (current)

R12

from 2026-03-28 to 2026-06-27

Expires in 37 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://jonas-fischer.com/

findings

missing HSTS
missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy